High color fastness warp-knitted fabric

Abstract

The utility model discloses a high color fastness warp knitting, including: fabric main part, the fabric main part is woven by GB1, GB2, GB3, GB4 four gill bar threading yarn, the colored ultraviolet resistant yarn is threaded in GB1, the colored antibacterial yarn is threaded in GB2, the colored filament is threaded in GB3, GB4, based on the utility model high color fastness warp knitting, and the fabric main part is threaded in different types colored yarn by four gill bar respectively, and is formed unique pattern with the cooperation of specific threading yarn mode and the gauze number, makes the fabric color break through the limitation of traditional warp knitting fabric pure color or two colors, presents more level color effect, satisfies the demand to fabric color variety, and colored yarn improves the solar fastness of fabric significantly, long -term use is not easy to fade, and the color is adhered, can satisfy the field demand of higher requirement to solar fastness such as car interior, has solved the problem of traditional warp knitting fabric solar fastness deficiency.

Description

Technical Field

[0001] This utility model relates to a warp-knitted fabric with high color fastness, belonging to the field of textile fabric technology. Background Technology

[0002] Warp-knitted fabrics are typically dyed to achieve various colors, but dyed warp-knitted fabrics usually only have one color, i.e., a solid color. If cationic polyester is used in the warp knitting process, the resulting warp-knitted fabric usually only has two colors, and the color fastness after dyeing is not high, especially in terms of light fastness. These warp-knitted fabrics are insufficient for applications such as automotive interiors or other fields where high light fastness is required.

[0003] In order to improve the color richness and light fastness of warp-knitted fabrics and make the colors of the fabrics more layered, this application provides a warp-knitted fabric with high color fastness. Utility Model Content

[0004] The purpose of this invention is to provide a warp-knitted fabric with high color fastness, which aims to improve the color richness and light fastness of the warp-knitted fabric, making the color of the fabric more layered.

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: A high color fastness warp-knitted fabric, comprising: a fabric body, wherein the fabric body is woven from four guide bars (GB1, GB2, GB3, and GB4); colored UV-resistant yarn is threaded into GB1; colored antibacterial yarn is threaded into GB2; and colored filaments are threaded into GB3 and GB4; the threading method and padding numbers of GB1, GB2, GB3, and GB4 are as follows: GB1: 1-0 / 4-5 / 3-2 / 6-7 / 5-4 / 8-9 / 7-6 / 10-11 / 9-8 / (12-13 / 10-9)×7 / 12-13 / 9-8 / 10-11 / 7-6 / 8-9 / 5-4 / 6-7 / 3-2 / 4-5 / (1-0 / 3-4)×7 / / ,ten through ten empty; GB2: (1-1 / 1-0 / 0-0 / 0-1)×12 / 1-0 / 0-1 / / , five empty spaces, two through holes, eight empty spaces, two through holes, three empty spaces; GB3: 2-3 / 1-0 / / , full penetration; GB4: 1-0 / 1-2 / / , full penetration.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the colored UV-resistant yarn is a colored polyester fiber yarn with UV-resistant function.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the colored antibacterial yarn is a colored low-melting-point core-sheath type antibacterial polyester fiber yarn.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the colored filament is a colored polyester filament.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the colored filament is a colored polylactic acid filament.

[0010] The beneficial effects of this utility model are as follows: Based on the high color fastness warp-knitted fabric of this utility model, the main body of the fabric is formed by inserting different types of colored yarns into four combs, and forming a unique pattern with specific yarn insertion methods and padding numbers. This allows the fabric color to break through the limitations of traditional warp-knitted fabrics that are solid or two-color, presenting a more layered color effect, meeting the demand for diverse fabric colors. In addition, the colored yarns significantly improve the fabric's resistance to sunlight, making it less prone to fading and staining after long-term use. This can meet the needs of fields such as automotive interiors that have high requirements for sunlight fastness, and solves the problem of insufficient sunlight fastness of traditional warp-knitted fabrics. Attached Figure Description

[0011] Figure 1 This is a diagram showing the movement of the yarn padding in GB1, which relates to this utility model. Figure 2 This is a diagram showing the movement of the yarn padding in GB2 as described in this utility model. Figure 3 This is a diagram showing the movement of the yarn padding in GB3 as described in this utility model. Figure 4 This is a motion diagram of the padding yarn in GB4, which is involved in this utility model. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0013] Example 1 Combination Figure 1-4 This embodiment provides a detailed description of a high colorfastness warp-knitted fabric, comprising: a fabric body, which is woven from four guide bars (GB1, GB2, GB3, and GB4); colored UV-resistant yarns are threaded into GB1; colored antibacterial yarns are threaded into GB2; and colored filaments are threaded into GB3 and GB4; the threading method and padding numbers of GB1, GB2, GB3, and GB4 are as follows: GB1: 1-0 / 4-5 / 3-2 / 6-7 / 5-4 / 8-9 / 7-6 / 10-11 / 9-8 / (12-13 / 10-9)×7 / 12-13 / 9-8 / 10-11 / 7-6 / 8-9 / 5-4 / 6-7 / 3-2 / 4-5 / (1-0 / 3-4)×7 / / ,ten through ten empty; GB2: (1-1 / 1-0 / 0-0 / 0-1)×12 / 1-0 / 0-1 / / , five empty spaces, two through holes, eight empty spaces, two through holes, three empty spaces; GB3: 2-3 / 1-0 / / , full penetration; GB4: 1-0 / 1-2 / / , full penetration.

[0014] Furthermore, the colored UV-resistant yarn is a colored polyester fiber yarn with UV-resistant function. The colored polyester fiber with UV-resistant function is a fiber produced by melt spinning polyester chips with masterbatch. The color and UV-resistant properties of the fiber are determined by the masterbatch formulation. The chip blending spinning process ensures that pigments, UV shielding agents, and lightfastness agents are evenly distributed on the fiber. This processing method not only eliminates the yarn dyeing process and avoids wastewater discharge, changing the traditional processing mode of colored yarn, but also greatly improves the UV resistance of the fiber and yarn, providing excellent energy-saving shading and UV blocking effects, significantly reducing solar radiation and isolating sunlight.

[0015] Furthermore, the colored antibacterial yarn is a colored low-melting-point core-sheath type antibacterial polyester fiber yarn. The preparation process of the colored low-melting-point core-sheath type antibacterial polyester fiber includes the following steps: antibacterial agent preparation: 3 kg KGM, 0.25 kg nano silver wire, 15 kg bamboo charcoal powder, and 90 kg water are mixed and stirred vigorously for 20 min at a stirring speed of 11000 r / min. The mixture is then allowed to stand for 30 h, filtered, and dried at 90 °C to constant weight to obtain the antibacterial agent; sheath material preparation: 100 kg of low-melting-point polyester chips are vacuum dried for 4 h at a drying temperature of 60 °C and a vacuum degree of -0.16 MPa. 2.5 kg of color masterbatch and 2.5 kg of antibacterial agent are added, and the mixture is high-pressure ground for 16 min at a grinding pressure of 0.3 MPa and a grinding speed of 3000 r / min to obtain the sheath material; core material preparation: 100 kg of ordinary polyester, 2 kg HPMA, and 1.5 kg of antioxidant TNP are mixed evenly to obtain the core material. Two kg of sheath material and 10 kg of core material were fed into a composite spinning assembly for spinning at 180℃. After cooling and solidification, nascent filament fibers were obtained. These fibers were then oiled and wound using a winding machine, followed by secondary heating and stretching at 145℃ and a stretch ratio of 5.4 to produce colored, low-melting-point sheath-core type antibacterial polyester fiber. This colored, low-melting-point sheath-core type antibacterial polyester fiber not only eliminates the need for fiber dyeing but also exhibits an antibacterial rate of 99.8% against Staphylococcus aureus and 97.9% against Streptococcus albus. After 20 washes at 40℃, the antibacterial performance retention rate was 95%, demonstrating excellent antibacterial effect.

[0016] Furthermore, the colored filament is colored polyester filament. Colored polyester filament is produced by melt-blending masterbatch with PET chips and then spinning, resulting in inherently colored polyester filament. The color is integrated into the fiber interior rather than adhering to the surface. Its lightfastness reaches level 4-5 or higher, its washfastness reaches level 3 or higher, and its rubbing fastness is significantly better than post-dyed fabrics. It is also resistant to fading and staining with long-term use.

[0017] The essence of colorfastness to sunlight is the stability of pigments under ultraviolet (UV) radiation. UV radiation damages the molecular structure of pigments, causing color fading. In this application, the yarns used are all colored yarns produced by the masterbatch method. The pigments in the masterbatch are uniformly dispersed in the polymer matrix of the fiber in a molten state at the micron or nanometer level, forming a structure in which the fiber encapsulates the pigments. UV radiation must first penetrate the fiber surface before it can contact the pigments, significantly reducing the probability of direct damage.

[0018] Specifically, when the colored UV-resistant yarn is dark gray, the colored antibacterial yarn is gray, and the colored filament is light gray, the pattern formed by the four combs through the padding yarn makes the color of the warp-knitted fabric more layered.

[0019] Example 2 The difference from Example 1 is that the colored filament is colored polylactic acid (PLA) filament. The colored PLA filament is prepared using PLA as a carrier to create a masterbatch, which is then spun using melt spinning. Because the colored PLA filament is prepared using the masterbatch method, the fiber itself has the required color for the product, eliminating the need for dyeing treatment. This reduces energy consumption, eliminates pollution, and lowers production costs.

[0020] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A warp-knitted fabric with high color fastness, characterized in that, include: The main body of the fabric is woven from four guide bars (GB1, GB2, GB3, and GB4). GB1 contains colored UV-resistant yarn; GB2 contains colored antibacterial yarn; and GB3 and GB4 contain colored filaments. The yarn threading method and padding numbers for GB1, GB2, GB3, and GB4 are as follows: GB1: 1-0 / 4-5 / 3-2 / 6-7 / 5-4 / 8-9 / 7-6 / 10-11 / 9-8 / (12-13 / 10-9)×7 / 12-13 / 9-8 / 10-11 / 7-6 / 8-9 / 5-4 / 6-7 / 3-2 / 4-5 / (1-0 / 3-4)×7 / / ,ten through ten empty; GB2: (1-1 / 1-0 / 0-0 / 0-1)×12 / 1-0 / 0-1 / / , five empty spaces, two through holes, eight empty spaces, two through holes, three empty spaces; GB3: 2-3 / 1-0 / / , full penetration; GB4: 1-0 / 1-2 / / , full penetration.

2. The high colorfastness warp-knitted fabric according to claim 1, characterized in that, The colored UV-resistant yarn is a colored polyester fiber yarn with UV-resistant function.

3. The high colorfastness warp-knitted fabric according to claim 1, characterized in that, The colored antibacterial yarn is a colored low-melting-point core-sheath type antibacterial polyester fiber yarn.

4. The high colorfastness warp-knitted fabric according to claim 1, characterized in that, The colored filament is colored polyester filament.

5. The high colorfastness warp-knitted fabric according to claim 1, characterized in that, The colored filament is a colored polylactic acid filament.

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